Designable core–shell graphite particles for thermally conductive and electrically insulating polymer composites

Hirahara, Takashi

doi:10.1039/c8ra01946k

Cited by 11 publications

(3 citation statements)

References 44 publications

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“…Typically, the shear force technique is widely used owing to its compatibility with most filler materials, along with its ability to provide a high degree of alignment and uniform distribution of the filler in a polymeric matrix [ 26 ]. Combining these techniques with ceramic filler materials enables the production of polymer composites with high electrical insulation properties and moderate thermal conductivities [ 30 ]. Recently, carbonaceous fillers with ultrahigh thermal conductivity, such as graphene, carbon nanotubes (CNTs), expanded graphite (EG), and graphite particles, have been reported to significantly enhance the thermal conductivity of SR composites [ 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Computational Optimization of Sandwich Silicone Rubber Composite for Improved Thermal Conductivity and Electrical Insulation

Alghamdi

2024

Polymers

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The efficient dissipation of heat has emerged as a crucial concern for modern electronic devices, given the continuous increase in their power density and consumption. Thus, the utilization of thermally conductive but electrically insulating silicone rubber composites as a thermal interface material has garnered significant interest. In this study, the effects of the filler volume fraction, filler orientation, layer volume fractions, layer configuration, and a number of layers on the thermal conductivity and electrical resistivity of silicone rubber composites were examined using a multiscale finite element modeling strategy. The results demonstrated that modification of the filler orientation can change the thermal conductivity by 28 and 21 times in the in-plane and through-thickness directions, respectively. The in-plane thermal conductivities of silicone rubber/boron nitride and silicone rubber/expanded graphite layers exhibit a percolation phenomenon at filler volume fractions of 35% and 30%, respectively. The electrical resistivity of the composite increases exponentially with a decrease in the number of layers.

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Section: Introductionmentioning

confidence: 99%

Computational Optimization of Sandwich Silicone Rubber Composite for Improved Thermal Conductivity and Electrical Insulation

Alghamdi

2024

Polymers

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“…Graphitic carbon particles [1] are widely used for structural health monitoring [2], medical treatment [3], sensing technology [4], cutting tools [5], and tribological applications [6]. These graphitic particles are recognised to regulate electrical conductivity [7,8], thermal management [9,10], damping capacity [11,12], corrosion resistance [13,14], and wear resistance [15][16][17] in numerous industrial products. Their usability in advanced engineering applications is rapidly increasing.…”

Section: Introductionmentioning

confidence: 99%

Progress in-situ synthesis of graphitic carbon nanoparticles with physical vapour deposition

Zia

Birkett

Badshah

et al. 2021

Progress in Crystal Growth and Characterization of Materials

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“…Therefore, it is of great importance to reduce the electrical conductivity and improve the dispersion of the GNS in the organic matrix so as to inhibit the corrosion-promotion effect for enhancing the corrosion resistance. One strategy is to encapsulate GNS via usage of insulating polymers (IPs) for obtaining excellent impermeability and insulation [19,20]. Ding et al encapsulated GNSs with boron nitride nanodots (BNNDs) and BNNDs acted as a spacer for separating the GNS and metal substrate [21,22].…”

Section: Introductionmentioning

confidence: 99%

Graphene@attapulgite nanohybrid silicone Sol-gel coating toward good corrosion resistance

Wang¹,

Yan²,

Tian³

et al. 2020

Surf. Topogr.: Metrol. Prop.

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Graphene with shielding effect can improve the corrosion resistance of organic coatings, but its high electrical conductivity intensifies the corrosion of metal substrate due to micro-galvanic effect on the interface of coating and substrate. The regulation of graphene’s conductivity can inhibit the corrosion-promotion effect. Hence, graphene supported attapulgite (GNS-ATP) nanosheets with lower conductivity were successfully prepared by using TEOS as coupling agent, then were introduced into Sol-gel coatings via using gamma methacryloxypropyltrimethoxysilane (MPS) and tetraethyl orthosilicate (TEOS) as precursors. The characterization on corrosion resistance of the hybrid coatings illustrates that a small amount of well-dispersed GNS-ATP nanosheets can significantly enhance the corrosion resistance, mainly depending on the structure and performance characteristics of GNS-ATP nanosheets. Such advantages on reducing porosity and conductivity of hybrid coatings offer a better corrosion resistance.

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Designable core–shell graphite particles for thermally conductive and electrically insulating polymer composites

Abstract: Core–shell graphite particles were successfully prepared via a mechanical mixing process. The thermally conductive and electrically insulating properties were designable for injection mouldable polymer composites.

Cited by 11 publications

References 44 publications

Computational Optimization of Sandwich Silicone Rubber Composite for Improved Thermal Conductivity and Electrical Insulation

Computational Optimization of Sandwich Silicone Rubber Composite for Improved Thermal Conductivity and Electrical Insulation

Progress in-situ synthesis of graphitic carbon nanoparticles with physical vapour deposition

Graphene@attapulgite nanohybrid silicone Sol-gel coating toward good corrosion resistance

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